| Abstrakt: |
The reactivity of complex [Ru(η6-p-cymene)(κ3P,N,O-Ph2PCH2P{NP(O)(OEt)2}Ph2)][SbF6]21 towards a variety of mono- and bidentate neutral ligands has been studied, allowing the high-yield synthesis of the novel half-sandwich Ru(ii) derivatives [Ru(η6-p-cymene)(L)(κ2P,O-Ph2PCH2P{NP(O)(OEt)2}Ph2)][SbF6]2 (L = NCMe 3a, NCEt 3b, PMe34a, PMe2Ph 4b, PMePh24c, PPh34d, P(OMe)35a, P(OEt)35b, P(OPh)35c, py 6, κ1P-dppm 7a, κ1P-dppe 7b), as well as the octahedral species [Ru(N⁁N)2(κ2P,O-Ph2PCH2P{NP(O)(OEt)2}Ph2)][SbF6]2 (N⁁N = bipy 8a, phen 8b). Deprotonation of complexes 8a,b, upon treatment with an excess of NaOH in CH2Cl2, generates the monocationic derivatives [Ru(N⁁N)2(κ2P,N-Ph2PC(H)P{NP(O)(OEt)2}Ph2)][Cl] (N⁁N = bipy 9a, phen 9b) in which the methanide anion adopts an unprecedented κ2P,N bidentate coordination mode. The structures of compounds 6, 8a and 9a have been determined by single-crystal X-ray diffraction methods. [ABSTRACT FROM AUTHOR] |
